PDA2000의 모니터링을 통한 계면활성제와 응집제의 반응 연구 = A study on the surfactants and flocculation reaction via monitoring PDA2000 suspensions

다국어 초록 (Multilingual Abstract)

This study is designed to do continuous monitoring using optical technologies of the flocculation properties of natural organic matters and those with surfactants. This method is considered as more efficient and faster than previous methods in investigating the characteristics of flocculation. In PDA2000, the processing aspects of flocs according to their changes in size appear by the ratio values. By analysing the ratio values, optimal flocculation conditions and the change of flocs depending on different variables.
According to the results, better efficiency was obtained when polymers with surfactants are inserted, than inorganic polymers only. It maybe the reason that the surfactants affected the flocculation efficiency, and then it caused the high effectiveness of inorganic polymers. In previous analyses, flocs produced with surfactants were bigger and more stable than flocs without surfactants. This may be the reason that surfactants lowered surface charge of particles due to the bridging effect. In order to treat humic acid, one of the organic matters, the optimal conditions were as follows: pH7, SC-030, surfactants tween 20. It also appeared that the insert order of surfactants affected the flocculation.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험재료
• 3. 실험 방법
• 4. 실험결과
• 5. 실험결론
• 참고문헌